<template>
    <div>
                  <!-- 面包屑导航 -->
       <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>添加商品</el-breadcrumb-item>
        
        </el-breadcrumb>
              <!-- 卡片视图区域 -->
        <el-card>
            <el-alert
                title="商品信息"
                type="info"
                center
                show-icon>
            </el-alert>
            <!-- 步骤条区域 -->
        <el-steps :space="200" :active="activeIndex - 0" finish-status="success" align-center>
            <el-step title="基本信息"></el-step>
            <el-step title="商品参数"></el-step>
            <el-step title="商品属性"></el-step>
            <el-step title="商品图片"></el-step>
            <el-step title="商品内容"></el-step>
            <el-step title="完成"></el-step>
        </el-steps>
            <!-- tab栏区域 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px" label-position="top">
            <el-tabs :tab-position="'left'" v-model="activeIndex" :before-leave="beferTabLeave" @tab-click="clickTab">
                <el-tab-pane label="基本信息" name="0">
                    <el-form-item label="商品名称" prop="goods_name">
                        <el-input v-model="addForm.goods_name"></el-input>
                    </el-form-item>      
                    <el-form-item label="商品价格" prop="goods_price">
                        <el-input v-model="addForm.goods_price" type="number"></el-input>
                    </el-form-item>      
                    <el-form-item label="商品重量" prop="goods_weight">
                        <el-input v-model="addForm.goods_weight" type="number" ></el-input>
                    </el-form-item>      
                    <el-form-item label="商品数量" prop="goods_number">
                        <el-input v-model="addForm.goods_number" type="number"></el-input>
                    </el-form-item>      
                    <el-form-item label="商品分类">
                          <el-cascader
                           expandTrigger="hover"
                            :options="catelist"
                            :props="cateProps"
                            v-model="addForm.goods_cat"
                            @change="handleChange"
                            clearable></el-cascader>
                    </el-form-item>
                

                </el-tab-pane>
                <el-tab-pane label="商品参数" name="1">
                    <el-form-item :label="item.attr_name" v-for="item in manyTableData" :key="item.attr_id">
                        <el-checkbox-group v-model="item.attr_vals">
                            <el-checkbox :label="t" border v-for="(t,i) in item.attr_vals" :key="i"></el-checkbox>
                        </el-checkbox-group>
                    </el-form-item>
                </el-tab-pane>
                <el-tab-pane label="商品属性" name="2">
                    <el-form-item :label="item.attr_name" v-for="item in onlyTableData" :key="item.attr_id">
                        <el-input v-model="item.attr_vals"></el-input>
                    </el-form-item>
                </el-tab-pane>
                <el-tab-pane label="商品图片" name="3">
                    <el-upload
                    class="upload-demo"
                    :action="actionUpload"
                    :on-preview="handlePreview"
                    :on-remove="handleRemove"
                  :headers="setToken"
                  :on-success="handleSuccess"
                  
                    list-type="picture">
                    <el-button size="small" type="primary">点击上传</el-button>
                    </el-upload>
                </el-tab-pane>
                <el-tab-pane label="商品内容" name="4">

                 <quill-editor v-model="addForm.goods_description"
                       >
                </quill-editor>
                 <el-button type="primary" @click="btnAdd" class="addBtn">添加商品</el-button>
                </el-tab-pane>
            </el-tabs>
        </el-form>
        <!-- 图片预览区域 -->
        <el-dialog
            title="图片预览"
            :visible.sync="previewDialogVisible"
            width="50%"
            >
            <img :src="imgSrc" class="preimag">
         
    </el-dialog>
        </el-card>
    </div>
</template>
<script>
import _ from 'lodash'
export default {
   data() {
       return {
           activeIndex:'0',
           addForm:{
               goods_name:"",
               goods_price:0,
               goods_weigh:0,
               goods_number:0,
               goods_cat:[],
               pic:[],
               goods_description:'',
               attrs:[]
           },
           addFormRules:{
         
            goods_name:[{ required: true, message: '请输入商品名称', trigger: 'blur' }],
            goods_price:[{ required: true, message: '请输入商品价格', trigger: 'blur' }],
            goods_weight:[{ required: true, message: '请输入商品重量', trigger: 'blur' }],
            goods_number:[{ required: true, message: '请输入商品数量', trigger: 'blur' }],
            goods_cat:[{ required: true, message: '请输入商品分类', trigger: 'blur' }],
           
          
            
           },
           catelist:[],
           cateProps:{
               label:"cat_name",
               value:"cat_id",
               children:'children'
           },
           manyTableData:[],
           onlyTableData:[],
           actionUpload:'http://127.0.0.1:8888/api/private/v1/upload',
           setToken:{
               Authorization:window.sessionStorage.getItem('token')
           },
           imgSrc:'',
           previewDialogVisible:false,
          


       }
   },
   created() {
       this.getCateList()
   },
    methods: {
        getCateList(){
            this.$http.get('categories')
            .then((res)=>{
                this.catelist=res.data.data
                this.$message.success('获取数据列表成功')
                console.log(this.catelist);
                
            })
            .catch(()=>{
                this.$message.error('获取列表数据失败')
            })
        },
        handleChange(){
            if(this.addForm.goods_cat.length!==3){
                this.addForm.goods_cat=[]
            }
            
        },
        beferTabLeave(activeName,oldActiveName){

            if(oldActiveName== '0' && this.addForm.goods_cat.length!==3){
               
               this.$message.error('请选择商品分类')
               return false
            }
        },
        clickTab(){
            if(this.activeIndex==="1"){
                this.$http.get(`categories/${this.cateId}/attributes`,{params:{sel:'many'}})
                .then((res)=>{

                    res.data.data.forEach(item=>{
                       item.attr_vals = item.attr_vals.length===0  ? []:item.attr_vals.split(' ')
                    })
                    
                    this.manyTableData = res.data.data
                    // console.log(this.manyTableData);
                    
                    
                    
                })
                .catch(()=>{
                    this.$message.error('获取数据列表失败')
                })
            }else if(this.activeIndex==='2'){
                this.$http.get(`categories/${this.cateId}/attributes`,{params:{sel:'only'}})
                .then((res)=>{

                    this.onlyTableData = res.data.data
                    // console.log(this.onlyTableData);
                    

                })
                .catch(()=>{
                    this.$message.error('获取商品属性失败')
                })
            }
        },
        handlePreview(){},
        handleRemove(){},
        handleSuccess(response){
         
           const picInfo = {pic:response.data.tmp_path}
           this.addForm.pic.push(picInfo)
            //   console.log( this.addForm);
            
        },
        handleRemove(file){
        
              const filePath = file.response.data.tmp_path;
              const i = this.addForm.pic.findIndex(item=>{
                  item.pic===filePath
              })
              this.addForm.pic.splice(i,1)
                    // console.log(this.addForm);

        },
        handlePreview(file){
            // console.log(file);
            this.imgSrc= file.response.data.url
            this.previewDialogVisible=true
            
        },
        btnAdd(){
            this.$refs.addFormRef.validate(valid=>{
                if(!valid){
                    return this.$message.error('请填写必要的表单内容')
                }

              const form =  _.cloneDeep(this.addForm)
              form.goods_cat = form.goods_cat.join(',')

            //   处理动态参数
            this.manyTableData.forEach(item=>{
                const newInfo = {
                    attr_id:item.attr_id,
                    attr_value:item.attr_vals.join(' ')
                }
                this.addForm.attrs.push(newInfo)
            })
            // 处理静态属性
              this.onlyTableData.forEach(item=>{
                const newInfo = {
                    attr_id:item.attr_id,
                    attr_value:item.attr_vals
                }
                this.addForm.attrs.push(newInfo)
            })
            form.attrs = this.addForm.attrs
            //   console.log(form);
              this.$http.post('goods',form)
              .then(()=>{
                  this.$message.success('添加商品成功')
                  this.$router.push('/goods')
              })
              .catch(()=>{
                  this.$message.error('添加商品失败')
              })
              
            })
            
        }
    },
    computed: {
        cateId(){
            if(this.addForm.goods_cat.length===3){
                return this.addForm.goods_cat[2]
            }
            return null

        }
    },
}

</script>
<style lang="less" scope>
    .el-checkbox{
        margin: 0 10px 0 0 !important
    }
    .preimag{
        width: 100%
    }
    .addBtn{
       margin-top: 20px!important
    }
</style>